Quarantine ClosingTheBrowserWindow_GracefullyDisconnects_TheCurrentCi… (#44018)

* Quarantine ClosingTheBrowserWindow_GracefullyDisconnects_TheCurrentCircuit

* Adding Microsoft.AspNetCore.Testing using

src/Components/test/E2ETest/ServerExecutionTests/CircuitGracefulTerminationTests.cs

@@ -5,6 +5,7 @@ using BasicTestApp;
 using Microsoft.AspNetCore.Components.E2ETest.Infrastructure;
 using Microsoft.AspNetCore.Components.E2ETest.Infrastructure.ServerFixtures;
 using Microsoft.AspNetCore.E2ETesting;
+using Microsoft.AspNetCore.Testing;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Logging.Testing;
 using OpenQA.Selenium;
@@ -61,6 +62,7 @@ public class CircuitGracefulTerminationTests : ServerTestBase<BasicTestAppServer
     }
 
     [Fact]
+    [QuarantinedTest("https://github.com/dotnet/aspnetcore/issues/44017")]
     public async Task ClosingTheBrowserWindow_GracefullyDisconnects_TheCurrentCircuit()
     {
         // Arrange & Act